Tool-holder.



Patented Sent. 1, 1914.

Jak/i T azz 'whom a mag/00mm f citizen of the States,"res`iding"at, Worcester', in thecounty ofy Worcester and' y and' expensive'forged tool. Specialjdevices have heretofore been :designed toy facilitater e vlowing isa specification.v

`- j rlfhisi vention relates JSEPH A'. LEDOUX, yor* woncnsrnru 4ivriissAcHusn'rfrs. f

- Be it lniown-thatl, JSPHALEDUX,

State of Massachusetts, `4have invented a new and useful Tool-Holder', which they folxl v y to a" tool holder of the ftypeldesigned' for holding turning `tools It' is vwell knownthat a thin flat tool `blade i if properly supportedfmaybe used to ac`co'in-y plish worlr otherwise'necessitating 4a heavy the use ofy such flat blades'for this purpose, and it is the objectof the presentfinvention to improve the construction ofsuch'devices, i

and to increase theirefiiciency 'while providing also for` simplicity of parts and-- economy of manufact'urewy r f Vith this object in view my invention re-` lates to certainv devices, arrangements,Itand*l combinations ofparts whicl'rlwilll be here-4` inafter described "and more` `"particularly pointed out in theappendejdclaims-A A preferred form of myinvention vis shown in the drawings,y in wh1ch e e Figure 1 is` aside elevation of'my improved tool-holder;Figi2 is a transversey sectional view taken along the line 2-'2 in Fig. 1; Fig. 3 is a side elevation showing the parts of the tool holder separated; Fig. 4 is a sectional view taken alongthe line 4-4 in Fig. 3 looking in the direction of the are rows; Fig. 5. is atop plan view of a'modied form of my invention; Fig. 6 is a sectional view taken along the `line 6-6 in Fig., 5;

F ig. 7 is a side elevation ofa second modi- 4o ication of my invention; and Fig. Sis ka sectional `view onthe lineSr-S in Fig. 7

The tool holder embodying my invention comprises essentially two parts, abody mem. ber 1() and a cap 11. These parts are shown in Fig. 1 in their normal positionresting upon the base offra tool post 12 and lsecured therein by the usual binding screw Ar thin fiat tool isindicated at 14, thetoolin this case being formed from a `w'ornout file,

y5() larly adapted for use in my device.

such material having. proved tobe particu- The body member 10 is cut away in lits/central portion to form a recess 15, and the ends of the body member are ,eachy provided with undercut grooves 16 extendingdownwardly .y and rearwardly as clearly shown in Fig. y4.

l ik l Specification of Letters Patent. y .Appim'ubn ieanqvember'l, i913. se1-iai`No.79s,v515.

e vlprootlnoiinnn.

Patentedsept. 1, 1914.

providedwith adependingflange 19. Vith this construction it will be'seenthat a tool Arestingfupon 'the'yprojection 18'will ybe *se-` curely 'held thereon 'by the 'cap 11 and that Ipressure yuponhthe cap, by the screw 13', e will force thercap and tool downwardly and f rearwardly" against 'the vertical face and lat eral projection; ofthe Abody-member 10. i

1` transformer my :device showin rig. 5 i

th'e tool clamping 'members are identical with those showny in Figs. lto 4,' with the exception that [the cap 11y is provided with aV transverse slot 20 through which extends a 'f yclamping "screw 21th'r`eaded`i'nto the inem- `be'i'r"71().` The body member vis furthermore provided with" a'shank 22 vangularly disposed with relation thereto and adapted to beclamped within the tool post of `a lathe.

In this form of my "invention the tool is y held within the tool holder by the pressure L exertedby the screw 21 whilev the tool holder itself is heldy `within the tool post y by thel shank 22. This form of holder is particularly adaptedfforl` close work upon large surfaces in cases .where thelateral dimensions of the'toolpost wouldprevent the use of the ordinary holder.

The form ofiny invention-shown in Figs. y f

`7 and 8 is similar ingits important features to those alreadydescribed, but the body inemberhlO is provided with a supporting e plate v23A which is freelyr `movable trans` verselyin ways' 24 and 25 formed upon the tends laterally'under the tool 14 and has upon its forward edge aliange 26. The rearj ward edge of the plate 23 .is also provided witha flange 27 which is beveled upon its it will readily be seen that when the cap 11 isy forced downwardly upon the tool 14 the fbeveled faces 28' and 29k will coperate to and therebybind the lower edge ofthe tool firmly .against the body of the holder.

y under side of the member.` The plate 23 exl v upper edge as indicated at 28. n The4 cap 11 i vin this form of my invention is provided with aicorrespondingly beveled edge'29 and i force ythe supporting plate` 23 rearwardly Viro , yHaving thus described my invention it l willbe evident that other modifica-tions and 'holder comprising a body member and-acap,said body havingintegral upwardly eX- tending `endsw'ithdownwardly and rearwardly inclinedgrooves in their inner faces, and saidcap having flanges in its endscorresponding Lto the angle of the grooves and adapted to slide therein. e y

2. As an article of manufacture, a tool holder comprising a body member and a cap, said cap being` mounted to slide in diagonal ways in said body portion and having transverse slot formed therein, and said body member having a clamping screw threaded therein and extendingv through ythe slot' to "secure the ycap and the tool to the body member, said body member also havino` a, shank projecting angular'ly from one endv thereofto support the tool holder rigidly in a tool post.

3. As an karticle of manufacture, a .tool I holder comprising a body Vmember and a cap, said cap being mounted to slide diagonallyin the body member and having an upwardly beveled rear edge, and said member being provided with a supporting fp'late mounted in transverse ways in its lower surface, said plate having a toolholding flange onthe front edge and a beveled vertical flange on the rear edge, the beveled edge of the cap coperatingwith the beveled flange to forcel the supporting plate rearwardly to clamp the tool.v

A4:, an article of fmanufacture, a tool holder Vcomprising a body member and, a cap, said body memberhaving a supporting plat-e mounted in transverse ways in' its lower surface, said plate and said cap havf` ing cooperating. beveledI surfaces jso'disposed that downwardmovement of lthecap will cause rearward movement ofthe plate to` clampthe plate to thebody member.

VIn testimony whereof I 4have hereunto set my hand, in the presenceof two subscribing witnesses.l v

y JOSEPH A. LEDOUX. Witnesses: y y .y

` CEAS. T. HAWLEY,

C; F. Wasson.

Copies of this' patent 'niay be obtained for vecentseacli, 'by addressingithe` ommissoner of Patents,

` Washington, D. C. v 

